Mathematical interpretation of monitoring results of the rock mass and TBM interaction

Abstract

The monitoring of input and uotput parameters of excavation process using the full-face tunnelling machine provides the determination of properties of excavated rock mass. A mathematical apparatus was designed to solve the task by the description of the interaction between disc cutters and rock mass at the contact surface. The mathematical models were verified by a comparison with the results of the detailed engineering-geological investigation realized in an exploratory gallery of the Branisko highway tunnel in sections excavated by the full-face tunnelling machine Wirth TB-II-330H.

Keywords

• computer monitoring system
• in situ measurement
• cutting forces
• disc cutter
• TBM
• rock mass